7/29/2019 U 3900 Brochure
12/12
Model
Dimensions(spectrophotometer main unit)
1: Baseline flatness in a range of 190 to 850 nm
Within 0.0003 Abs (U-3900)
Within 0.0004 Abs (U-3900H)
2: With 1%T light attenuating plateMicrosoft Excel, Word and
Windows XP are trade names of Microsoft Corporation in
U.S.A.Microsoft and Windows are registered trademarks of Microsoft
Corporation in U.S.A.
NOTES: 1. Absorption cells are not included in the standard
equipment, and thus should be prepared separately.
2. A PC set is not supplied as standard equipment. It should be
prepared separately.
Monochromator
Stray light
Photometric range
Photometric accuracy(checked with NIST SRM930)
Photometric repeatability(checked with NIST SRM930)
Wavelength range
Spectral bandpass
Wavelength accuracy
Wavelength setting repeatabilityPhotometric mode
Response
Baseline flatness
Baseline stability
Baseline memory
Wavelength scan speed
Light source
Sample compartment
Light source changeover
Detector
Data processing unit
Operating temperature/humidity
Weight
UV Solutions program
Power consumption
U-3900
Specifications Software Functions (common to U-3900/U-3900H)
U-3900 Wavelength/Time Scan,
Measurement and Data ProcessingPhotometry
Q'tyStandard Equipment
1 set1 set
1 set
Spectrophotometer main unitTools
Instruction manual
0.015% 0.00025%
Within 0.0003 Abs (190 to 850 nm) Within 0.0004 Abs (190 to 850
nm)
Abs : -3.8 to 3.8 Abs(effective range)%T : 0 to 300%T
Abs : -5.5 to 5.5 Abs(2)
(effective range)%T : 0 to 300%T
Diffraction gratingSingle monochromatorSeya-Namioka mount
Diffraction grating-diffractiongrating Double
monochromatorSeya-Namioka mount
190 to 900 nm(1)
0.1, 0.5, 1, 2, 4, 5 nm (6 steps)
0.1 nm (at 656.1 nm after wavelength calibration)
0.05 nmAbs, %T, %R, E(S), E(R)
(Nal : 220 nm, NaNO2 : 340 nm)
3 channels (system : 1 channel, user : 2 channels)
Within 0.0002 Abs/hr (at 500 nm, 2 hours after power-on)
Beam spacing: 100 mm120 (W) 300 (D) 140 (H) mm
Automatic changeover linked with wavelength
Changeover wavelength : Selectable in a range of 325 to 370
nm)
Temperature : 15 to 35, Humidity: 25 to 85% (non-condensing)
High resolution, Standard
PC: OS Windows XP Professional SP2
680 (W) 692 (D) 257 (H) mm
Photomultiplier
45 kg (spectrophotometer main unit)
Standard software
0.002 Abs (0 to 0.5 Abs)0.003 Abs (0.5 to 1.0 Abs)0.006 Abs (1.0
to 2.0 Abs)0.3%T
1.5, 3, 15, 30, 60, 120, 300, 600, 1200, 1800, 2400 nm/min
Adjustment-free deuterium lamp D2 lamp): Ultraviolet
regionAdjustment-free tungsten iodine lamp (50 W)(WI lamp) :
Visible region
0.001 Abs (0 to 0.5 Abs)0.0015 Abs (0.5 to 1.0 Abs)0.003 Abs
(1.0 to 2.0 Abs)0.1%T
100 V AC50/60 Hz, 300 VA
(excluding personal computer and printer)
Spectrophotometer
control
Measuringconditions
Execution ofmeasurement
Recording/Display
Dataprocessing
Miscellaneous
Waveleng th shift (Go to ) 100%T adjustment (auto zero)
Automatic wavelength calibration Detector zero adjustment
Measuring condition setting Condition loading Condition saving
(desired number of files, file overwriting/deletion possible)
Automatic start function (measuring conditions automatically set
upon startup of software)
Measurement of spectrum/change with time Repetitive spectrum
measurement Setting of sampling interval Measurement with scan
speed changed
in ultraviolet region
Condition setting for working curve(1st to 3rd order, segmented
line)
Standard data setting(20 standards, average of 20 data
values)
K factor input
Remeasurement of working curve Interrupt measurement
Baseline measurement (3 channels) (system baseline : 1 channel,
user baseline: 2 channels)
Sample name Comment input Ruled line printout ON/OFF Measuring
condition printout ON/OFF
Printout and display of spectrum/ change with time Spectrum
loading (with preview) Spectrum saving Spectrum
printout/display
File conversion (ASCII/JCAMP) Setting of number of decimal
places for display Cell length conversion Data transfer/graph copy
to Microsoft Excel Print preview Display of lamp ON time
Working curve printout/display Data deletion Data loading Data
saving Data list printout/display
Rescaling
(numerical value input, cursor input) Spectrum trace Smoothing
Peak detection Data printout (printout of wavelength/time at fixed
intervals) Graph axis conversion Spectral calculation (arithmetic
calculation/coefficient calculation) Differentiation (1st to 4th
order) Data reset Rate calculation (only in time scan mode)
Spectrum selection Spectrum display window
Working curve trace
Working curve erasure Data printout Sample data erasure
Statistic calculation Calculation of determination coefficient
Setting of correction coefficient Setting of number of decimal
places for
concentration Setting of concentration unit
Notice: For proper operation, follow the instruction manual when
using the instrument.
Specifications in this catalog are subject to change with or
without notice, as Hitachi High-Technologies Corporation continues
to develop the latesttechnologies and products for our
customers.
For further information, please contactyour nearest sales
representative.
Tokyo, Japanhttp://www.hitachi-hitec.com/global/science/24-14
Nishi-Shimbashi 1-chome, Minato-ku, Tokyo, 105-8717, Japan
Tel: +81-3-3504-7111 Fax: +81-3-3504-7123
